Class java.util.Collections

Added Methods
SequencedSet<E> newSequencedSetFromMap(SequencedMap<E, Boolean>)  
void shuffle(List<?>, RandomGenerator)  
SequencedCollection<T> unmodifiableSequencedCollection(SequencedCollection<? extends T>)  
(SequencedMap<K, V>) unmodifiableSequencedMap(SequencedMap<?, extends, K, ?, extends, V>)  
SequencedSet<T> unmodifiableSequencedSet(SequencedSet<? extends T>)